This article is about new aspects of the never-ending story of how Apple is protecting MacOS X for running on different hardware than Apple's. The keyword is virtualization, which allows running unmodified version of Mac OS X as virtualized instance.

They don't sell the OS, they sell the hardware/OS as a sealed bundle. It's only incidental that you as a computer-savvy individual understand the difference between an operating system and the hardware it's running on, but Apple's approach is to simply sell "a computing experience" and if that's what they're selling, that's what you get.

The EULA basically is preventing companies from building supporting infrastructure for OSX separate from the hardware ecosystem. While it's technically "illegal" for anyone to try to separate the operating system from the hardware, there's no real possibility that Apple will pursue legal action against the hacker community from running virtualized Mac OSX on non-Mac hardware. However, the moment any other company breaks the EULA and attempts this, Apple's lawyers will bite them quick. And they don't have to support hackers in their endeavors.

All the more reason to continue developing free software UNIX operating systems, ala BSD and Linux. Need closed commercial apps that only run on closed commercial operating systems? I guess one can either whine (or wine, haha) about it or simply use free software and help build a free computing ecosystem to address all our constructive needs. And of course, you can simply buy those company's products on their terms.